const errorType = require("../constants/error-types");
const service = require("../service/user.service");
const md5password = require("../utils/password-handle");
const verifyUser = async (ctx, next) => {
  //1.获取用户名和密码
  const { name, password } = ctx.request.body;

  //2.判断用户名或者密码不能为空
  if (!name || !password || name === "" || password === "") {
    const error = new Error(errorType.NAME_OR_PASSWORD_IS_REQUIRED);
    return ctx.app.emit("error", error, ctx);
  }

  //3.判断这次注册的用户名是没有被注册过的
  const result = await service.getUserByName(name);
  if (result.length) {
    const error = new Error(errorType.USER_ALREADY_EXISTS);
    return ctx.app.emit("error", error, ctx);
  }
  //如果都没有错就往下执行
  await next();
};
const handlePassword = async (ctx, next) => {
  const { password } = ctx.request.body;
  ctx.request.body.password = md5password(password);
  //如果都没有错就往下执行
  await next();
};

module.exports = {
  verifyUser,
  handlePassword,
};
